Periventricular Hemorrhagic Infarct

  • Etiology: Secondary to (usually large amounts of) intraventricular hemorrhage which causes venous obstruction in periventricular white matter which leads to thrombosis of terminal veins of the hemorrhagic germinal layer causing hemorrhagic venous infarct which evolves into porencephalic cyst (venous event leads to hemorrhagic venous infarct) = venous wet infarct
  • Imaging US: Unilateral or asymmetric periventricular echogencities
  • DDX: Normal peritrigonal blush, periventricular leukomalacia, edema
  • Complications: Cystic encephalomalacia
  • Treatment:
  • Clinical: High incidence of hemiplegia

Radiology Cases of Periventricular Hemorrhagic Infarct

Head US of neonatal intraventricular hemorrhage grade III and periventricular hemorrhage
Coronal US of the brain shows increased echogenicity within the anterior horn of the left lateral ventricle with ventricular dilation (upper) and increased echogenicity within the brain parenchyma in the left anterior periventricular region and right temporal region (lower left) and in the bilateral posterior periventricular regions (lower right).